Metallic flake containing coating composition having enhanced glamour Title: Metallic flake containing coating compositions getting enhanced glamour Abstract: This invention provides for an aqueous metallic flake that contains coating composition getting improved glamour. The coating composition includes a neutralized phosphated segmented copolymer dispersed in an aqueous carrier. The phosphorous moiety in the segmented copolymer passivates the metallic flakes, this kind of as aluminum flakes, used to produce the glamour. As a outcome, generation of hydrogen gas is substantially reduced. The segmented copolymer is supplied with hydrophobic and nonionic hydrophilic segments. Applicants have found that by including a nonionic hydrophilic section in the segmented copolymer, glamour of the resultant coating composition can be enhanced. Furthermore, by controlling the molar ratio of the hydrophobic segment to the hydrophilic section in the segmented copolymer and the solubility parameter of the hydrophobic segment, applicants have found that it is possible to use both a nonpassivated aluminum flake or prepassivated aluminum flake in the coating composition whilst improving glamour over conventional metallic paints and nonetheless sustaining the dispersion balance of the composition. As a result, formulator has substantial leeway in selecting from a broad array of environmentally satisfactory solvents, film forming binders and components, which are typically additional to a coating composition for improving the coating qualities. The composition is most suited for use in automotive OEM and refinish metallic paints. DE), Fryd Michael (Philadelphia, PA), Huybrechts Josef (OudTurnhout, BE), Kirshenbaum Kenneth S. (West Bloomfield, MI), Visscher Karyn B. (Voorhees, NJ) Assignee: E. I. du Pont de Nemours and CompanyWe claim: 1. An aqueous metallic flake containing coating composition comprising: metallic flakes and a neutralized phosphated segmented copolymer dispersed in an aqueous provider, saidterminal factors to a hydrophobic section, and said block copolymer comprises 1 or two of nonionic hydrophilic segments linearly attached to a hydrophobic billiga nike free run segment, wherein a molar ratio of said hydrophobic section to stated nonionic hydrophilic segment in said graft and block copolymers varies in the variety of from ninety six:four to four:ninety six and whereby stated nonionic hydrophilic segment is polymerized from 1 or much more nonionic monomers chosen from the team consisting of ethylene oxide, propylene oxide, butylenes oxide, vinyl pyrolidone, oxazoline, and a combination thereof and wherein said segmented phosphated copolymer is supplied in the variety of from .four weight percent billiga nike free run 2 to 12 weight percent with phosphate moieties, all percentages being based on composition2. The coating composition of declare 1 whereby stated hydrophilic segment has a GPC weight typical molecular weight in the billiga air max 90 range of from two,000 to 100,000. three. The billiga nike air max 90 coating composition of claim 1 wherein said metal flake is aluminum. four. The coating composition of declare 1 wherein stated neutralized segmented copolymer is neutralized with a neutralizing agent selected from ralph lauren outlet sverige the group consisting of an inorganic base, an amine and a 5. The coating composition of declare 1 whereby stated aqueous provider comprises one or much more solvents. six. The coating composition of declare 5 whereby stated
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